Arif in now 5 times as old as Babu, but 7 years from now he will be 3 times as old as Babu. How old is Arif now?

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Job Solution United Commercial Bank Ltd (UCB) United Commercial Bank Ltd - Probationary Officer - 17.02.2017 গণিত
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If c and d are two integers and @ is defined in p an q as @ (p, q)=(p+1)(q+2), and @ (c, d) equals the product of 2 and 5, then what should be the value of c+d?

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